src/protocols/jabber/jabber.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * gaim
 *
 * Some code copyright (C) 1998-1999, Mark Spencer <markster@marko.net>
 * libfaim code copyright 1998, 1999 Adam Fritzler <afritz@auk.cx>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif


#include <netdb.h>
#include <unistd.h>
#include <errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sys/socket.h>
#include <sys/utsname.h>
#include <sys/stat.h>
#include "multi.h"
#include "prpl.h"
#include "gaim.h"
#ifdef MAX
#undef MAX
#endif
#ifdef MIN
#undef MIN
#endif
#include "jabber.h"
#include "proxy.h"

#include "pixmaps/available.xpm"
#include "pixmaps/available-away.xpm"
#include "pixmaps/available-chat.xpm"
#include "pixmaps/available-xa.xpm"
#include "pixmaps/available-dnd.xpm"

/* The priv member of gjconn's is a gaim_connection for now. */
#define GJ_GC(x) ((struct gaim_connection *)(x)->priv)

#define IQID_AUTH "__AUTH__"

#define IQ_NONE -1
#define IQ_AUTH 0
#define IQ_ROSTER 1

#define UC_AWAY (0x02 | UC_UNAVAILABLE)
#define UC_CHAT  0x04
#define UC_XA   (0x08 | UC_UNAVAILABLE)
#define UC_DND  (0x10 | UC_UNAVAILABLE)

#define DEFAULT_SERVER "jabber.org"
#define DEFAULT_GROUPCHAT "conference.jabber.org"
#define DEFAULT_PORT 5222

#define USEROPT_PORT 0

typedef struct gjconn_struct {
	/* Core structure */
	pool p;			/* Memory allocation pool */
	int state;		/* Connection state flag */
	int fd;			/* Connection file descriptor */
	jid user;		/* User info */
	char *pass;		/* User passwd */

	/* Stream stuff */
	int id;			/* id counter for jab_getid() function */
	char idbuf[9];		/* temporary storage for jab_getid() */
	char *sid;		/* stream id from server, for digest auth */
	XML_Parser parser;	/* Parser instance */
	xmlnode current;	/* Current node in parsing instance.. */

	/* Event callback ptrs */
	void (*on_state)(struct gjconn_struct *j, int state);
	void (*on_packet)(struct gjconn_struct *j, jpacket p);

	void *priv;

} *gjconn, gjconn_struct;

typedef void (*gjconn_state_h)(gjconn j, int state);
typedef void (*gjconn_packet_h)(gjconn j, jpacket p);

static gjconn gjab_new(char *user, char *pass, void *priv);
static void gjab_delete(gjconn j);
static void gjab_state_handler(gjconn j, gjconn_state_h h);
static void gjab_packet_handler(gjconn j, gjconn_packet_h h);
static void gjab_start(gjconn j);
static void gjab_stop(gjconn j);
/*
static int gjab_getfd(gjconn j);
static jid gjab_getjid(gjconn j);
static char *gjab_getsid(gjconn j);
*/
static char *gjab_getid(gjconn j);
static void gjab_send(gjconn j, xmlnode x);
static void gjab_send_raw(gjconn j, const char *str);
static void gjab_recv(gjconn j);
static void gjab_auth(gjconn j);

struct jabber_data {
	gjconn jc;
	gboolean did_import;
	GSList *pending_chats;
	GSList *existing_chats;
	GHashTable *hash;
	time_t idle;
	gboolean die;
};

struct jabber_chat {
	jid Jid;
	struct gaim_connection *gc;
	struct conversation *b;
	int id;
};

static char *jabber_name()
{
	return "Jabber";
}

#define STATE_EVT(arg) if(j->on_state) { (j->on_state)(j, (arg) ); }

static char *create_valid_jid(const char *given, char *server, char *resource)
{
	char *valid;

	if (!strchr(given, '@'))
		valid = g_strdup_printf("%s@%s/%s", given, server, resource);
	else if (!strchr(strchr(given, '@'), '/'))
		valid = g_strdup_printf("%s/%s", given, resource);
	else
		valid = g_strdup(given);

	return valid;
}

static gjconn gjab_new(char *user, char *pass, void *priv)
{
	pool p;
	gjconn j;

	if (!user)
		return (NULL);

	p = pool_new();
	if (!p)
		return (NULL);
	j = pmalloc_x(p, sizeof(gjconn_struct), 0);
	if (!j)
		return (NULL);
	j->p = p;

	j->user = jid_new(p, user);
	j->pass = pstrdup(p, pass);

	j->state = JCONN_STATE_OFF;
	j->id = 1;
	j->fd = -1;

	j->priv = priv;

	return j;
}

static void gjab_delete(gjconn j)
{
	if (!j)
		return;

	gjab_stop(j);
	pool_free(j->p);
}

static void gjab_state_handler(gjconn j, gjconn_state_h h)
{
	if (!j)
		return;

	j->on_state = h;
}

static void gjab_packet_handler(gjconn j, gjconn_packet_h h)
{
	if (!j)
		return;

	j->on_packet = h;
}

static void gjab_stop(gjconn j)
{
	if (!j || j->state == JCONN_STATE_OFF)
		return;

	j->state = JCONN_STATE_OFF;
	gjab_send_raw(j, "</stream:stream>");
	close(j->fd);
	j->fd = -1;
	XML_ParserFree(j->parser);
	j->parser = NULL;
}

/*
static int gjab_getfd(gjconn j)
{
	if (j)
		return j->fd;
	else
		return -1;
}

static jid gjab_getjid(gjconn j)
{
	if (j)
		return (j->user);
	else
		return NULL;
}

static char *gjab_getsid(gjconn j)
{
	if (j)
		return (j->sid);
	else
		return NULL;
}
*/

static char *gjab_getid(gjconn j)
{
	snprintf(j->idbuf, 8, "%d", j->id++);
	return &j->idbuf[0];
}

static void gjab_send(gjconn j, xmlnode x)
{
	if (j && j->state != JCONN_STATE_OFF) {
		char *buf = xmlnode2str(x);
		if (buf)
			write(j->fd, buf, strlen(buf));
		debug_printf("gjab_send: %s\n", buf);
	}
}

static void gjab_send_raw(gjconn j, const char *str)
{
	if (j && j->state != JCONN_STATE_OFF) {
		write(j->fd, str, strlen(str));
		debug_printf("gjab_send_raw: %s\n", str);
	}
}

static void gjab_reqroster(gjconn j)
{
	xmlnode x;

	x = jutil_iqnew(JPACKET__GET, NS_ROSTER);
	xmlnode_put_attrib(x, "id", gjab_getid(j));

	gjab_send(j, x);
	xmlnode_free(x);
}

static void gjab_reqauth(gjconn j)
{
	xmlnode x, y, z;
	char *user;

	if (!j)
		return;

	x = jutil_iqnew(JPACKET__GET, NS_AUTH);
	xmlnode_put_attrib(x, "id", IQID_AUTH);
	y = xmlnode_get_tag(x, "query");

	user = j->user->user;

	if (user) {
		z = xmlnode_insert_tag(y, "username");
		xmlnode_insert_cdata(z, user, -1);
	}

	gjab_send(j, x);
	xmlnode_free(x);
}

static void gjab_auth(gjconn j)
{
	xmlnode x, y, z;
	char *hash, *user;

	if (!j)
		return;

	x = jutil_iqnew(JPACKET__SET, NS_AUTH);
	xmlnode_put_attrib(x, "id", IQID_AUTH);
	y = xmlnode_get_tag(x, "query");

	user = j->user->user;

	if (user) {
		z = xmlnode_insert_tag(y, "username");
		xmlnode_insert_cdata(z, user, -1);
	}

	z = xmlnode_insert_tag(y, "resource");
	xmlnode_insert_cdata(z, j->user->resource, -1);

	if (j->sid) {
		debug_printf("digest authentication (sid %s)\n", j->sid);
		z = xmlnode_insert_tag(y, "digest");
		hash = pmalloc(x->p, strlen(j->sid) + strlen(j->pass) + 1);
		strcpy(hash, j->sid);
		strcat(hash, j->pass);
		hash = shahash(hash);
		xmlnode_insert_cdata(z, hash, 40);
	} else {
		z = xmlnode_insert_tag(y, "password");
		xmlnode_insert_cdata(z, j->pass, -1);
	}

	gjab_send(j, x);
	xmlnode_free(x);

	return;
}

static void gjab_recv(gjconn j)
{
	static char buf[4096];
	int len;

	if (!j || j->state == JCONN_STATE_OFF)
		return;

	if ((len = read(j->fd, buf, sizeof(buf) - 1))) {
		struct jabber_data *jd = GJ_GC(j)->proto_data;
		buf[len] = '\0';
		debug_printf("input (len %d): %s\n", len, buf);
		XML_Parse(j->parser, buf, len, 0);
		if (jd->die)
			signoff(GJ_GC(j));
	} else if (len <= 0) {
		STATE_EVT(JCONN_STATE_OFF)
	}
}

static void startElement(void *userdata, const char *name, const char **attribs)
{
	xmlnode x;
	gjconn j = (gjconn) userdata;

	if (j->current) {
		/* Append the node to the current one */
		x = xmlnode_insert_tag(j->current, name);
		xmlnode_put_expat_attribs(x, attribs);

		j->current = x;
	} else {
		x = xmlnode_new_tag(name);
		xmlnode_put_expat_attribs(x, attribs);
		if (strcmp(name, "stream:stream") == 0) {
			/* special case: name == stream:stream */
			/* id attrib of stream is stored for digest auth */
			j->sid = g_strdup(xmlnode_get_attrib(x, "id"));
			/* STATE_EVT(JCONN_STATE_AUTH) */
			xmlnode_free(x);
		} else {
			j->current = x;
		}
	}
}

static void endElement(void *userdata, const char *name)
{
	gjconn j = (gjconn) userdata;
	xmlnode x;
	jpacket p;

	if (j->current == NULL) {
		/* we got </stream:stream> */
		STATE_EVT(JCONN_STATE_OFF)
		    return;
	}

	x = xmlnode_get_parent(j->current);

	if (!x) {
		/* it is time to fire the event */
		p = jpacket_new(j->current);

		if (j->on_packet)
			(j->on_packet) (j, p);
		else
			xmlnode_free(j->current);
	}

	j->current = x;
}

static void jabber_callback(gpointer data, gint source, GaimInputCondition condition)
{
	struct gaim_connection *gc = (struct gaim_connection *)data;
	struct jabber_data *jd = (struct jabber_data *)gc->proto_data;

	gjab_recv(jd->jc);
}

static void charData(void *userdata, const char *s, int slen)
{
	gjconn j = (gjconn) userdata;

	if (j->current)
		xmlnode_insert_cdata(j->current, s, slen);
}

static void gjab_connected(gpointer data, gint source, GaimInputCondition cond)
{
	xmlnode x;
	char *t, *t2;
	struct gaim_connection *gc = data;
	struct jabber_data *jd;
	gjconn j;

	if (!g_slist_find(connections, gc)) {
		close(source);
		return;
	}

	jd = gc->proto_data;
	j = jd->jc;

	if (j->fd != source)
		j->fd = source;

	if (source == -1) {
		STATE_EVT(JCONN_STATE_OFF)
		return;
	}

	j->state = JCONN_STATE_CONNECTED;
	STATE_EVT(JCONN_STATE_CONNECTED)

	/* start stream */
	x = jutil_header(NS_CLIENT, j->user->server);
	t = xmlnode2str(x);
	/* this is ugly, we can create the string here instead of jutil_header */
	/* what do you think about it? -madcat */
	t2 = strstr(t, "/>");
	*t2++ = '>';
	*t2 = '\0';
	gjab_send_raw(j, "<?xml version='1.0'?>");
	gjab_send_raw(j, t);
	xmlnode_free(x);

	j->state = JCONN_STATE_ON;
	STATE_EVT(JCONN_STATE_ON);

	gc = GJ_GC(j);
	gc->inpa = gaim_input_add(j->fd, GAIM_INPUT_READ, jabber_callback, gc);
}

static void gjab_start(gjconn j)
{
	struct aim_user *user;
	int port;

	if (!j || j->state != JCONN_STATE_OFF)
		return;

	user = GJ_GC(j)->user;
	port = user->proto_opt[USEROPT_PORT][0] ? atoi(user->proto_opt[USEROPT_PORT]) : DEFAULT_PORT;

	j->parser = XML_ParserCreate(NULL);
	XML_SetUserData(j->parser, (void *)j);
	XML_SetElementHandler(j->parser, startElement, endElement);
	XML_SetCharacterDataHandler(j->parser, charData);

	j->fd = proxy_connect(j->user->server, port, gjab_connected, GJ_GC(j));
	if (!user->gc || (j->fd < 0)) {
		STATE_EVT(JCONN_STATE_OFF)
		return;
	}
}

static struct conversation *find_chat(struct gaim_connection *gc, char *name)
{
	GSList *bcs = gc->buddy_chats;
	struct conversation *b = NULL;
	char *chat = g_strdup(normalize(name));

	while (bcs) {
		b = bcs->data;
		if (!strcasecmp(normalize(b->name), chat))
			break;
		b = NULL;
		bcs = bcs->next;
	}

	g_free(chat);
	return b;
}

static struct jabber_chat *find_existing_chat(struct gaim_connection *gc, jid chat)
{
	GSList *bcs = ((struct jabber_data *)gc->proto_data)->existing_chats;
	struct jabber_chat *jc = NULL;

	while (bcs) {
		jc = bcs->data;
		if (!jid_cmpx(chat, jc->Jid, JID_USER | JID_SERVER))
			break;
		jc = NULL;
		bcs = bcs->next;
	}

	return jc;
}

static struct jabber_chat *find_pending_chat(struct gaim_connection *gc, jid chat)
{
	GSList *bcs = ((struct jabber_data *)gc->proto_data)->pending_chats;
	struct jabber_chat *jc = NULL;

	while (bcs) {
		jc = bcs->data;
		if (!jid_cmpx(chat, jc->Jid, JID_USER | JID_SERVER))
			break;
		jc = NULL;
		bcs = bcs->next;
	}

	return jc;
}

static gboolean find_chat_buddy(struct conversation *b, char *name)
{
	GList *m = b->in_room;

	while (m) {
		if (!strcmp(m->data, name))
			return TRUE;
		m = m->next;
	}

	return FALSE;
}

static void jabber_handlemessage(gjconn j, jpacket p)
{
	xmlnode y, xmlns, subj;

	char *from = NULL, *msg = NULL, *type = NULL, *topic = NULL;
	char m[BUF_LONG * 2];

	type = xmlnode_get_attrib(p->x, "type");

	if (!type || !strcasecmp(type, "normal") || !strcasecmp(type, "chat")) {

		/* XXX namespaces could be handled better. (mid) */
		if ((xmlns = xmlnode_get_tag(p->x, "x")))
			type = xmlnode_get_attrib(xmlns, "xmlns");

		from = jid_full(p->from);
		/*
		if ((y = xmlnode_get_tag(p->x, "html"))) {
			msg = xmlnode_get_data(y);
		} else
		*/
		if ((y = xmlnode_get_tag(p->x, "body"))) {
			msg = xmlnode_get_data(y);
		}

		msg = utf8_to_str(msg);

		if (!from)
			return;

		if (type && !strcasecmp(type, "jabber:x:conference")) {
			char *room;
			GList *m = NULL;
			char **data;

			room = xmlnode_get_attrib(xmlns, "jid");
			data = g_strsplit(room, "@", 2);
			m = g_list_append(m, g_strdup(data[0]));
			m = g_list_append(m, g_strdup(data[1]));
			m = g_list_append(m, g_strdup(j->user->user));
			g_strfreev(data);

			serv_got_chat_invite(GJ_GC(j), room, from, msg, m);
		} else if (msg) { /* whisper */
			struct jabber_chat *jc;
			g_snprintf(m, sizeof(m), "%s", msg);
			if (((jc = find_existing_chat(GJ_GC(j), p->from)) != NULL) && jc->b)
				serv_got_chat_in(GJ_GC(j), jc->b->id, p->from->resource, 1, m, time(NULL));
			else {
				int flags = 0;
				if (xmlnode_get_tag(p->x, "gaim"))
					flags = IM_FLAG_GAIMUSER;
				if (find_conversation(jid_full(p->from)))
					serv_got_im(GJ_GC(j), jid_full(p->from), m, flags, time(NULL));
				else {
					from = g_strdup_printf("%s@%s", p->from->user, p->from->server);
					serv_got_im(GJ_GC(j), from, m, flags, time(NULL));
					g_free(from);
				}
			}
		}

		if (msg)
			g_free(msg);

	} else if (!strcasecmp(type, "error")) {
		if ((y = xmlnode_get_tag(p->x, "error"))) {
			type = xmlnode_get_attrib(y, "code");
			msg = xmlnode_get_data(y);
		}

		if (msg) {
			from = g_strdup_printf("Error %s", type ? type : "");
			do_error_dialog(msg, from);
			g_free(from);
		}
	} else if (!strcasecmp(type, "groupchat")) {
		struct jabber_chat *jc;
		static int i = 0;

		/*
		if ((y = xmlnode_get_tag(p->x, "html"))) {
			msg = xmlnode_get_data(y);
		} else
		*/
		if ((y = xmlnode_get_tag(p->x, "body"))) {
			msg = xmlnode_get_data(y);
		}

		msg = utf8_to_str(msg);
		
		if ((subj = xmlnode_get_tag(p->x, "subject"))) {
		   	topic = xmlnode_get_data(subj);
		} 
		topic = utf8_to_str(topic);

		jc = find_existing_chat(GJ_GC(j), p->from);
		if (!jc) {
			/* we're not in this chat. are we supposed to be? */
			struct jabber_data *jd = GJ_GC(j)->proto_data;
			if ((jc = find_pending_chat(GJ_GC(j), p->from)) != NULL) {
				/* yes, we're supposed to be. so now we are. */
				jc->b = serv_got_joined_chat(GJ_GC(j), i++, p->from->user);
				jc->id = jc->b->id;
				jd->existing_chats = g_slist_append(jd->existing_chats, jc);
				jd->pending_chats = g_slist_remove(jd->pending_chats, jc);
			} else {
				/* no, we're not supposed to be. */
				g_free(msg);
				return;
			}
		}
		if (p->from->resource) {
			if (!y) {
				if (!find_chat_buddy(jc->b, p->from->resource))
					add_chat_buddy(jc->b, p->from->resource);
				else if ((y = xmlnode_get_tag(p->x, "status"))) {
					char buf[8192];
					msg = xmlnode_get_data(y);
					g_snprintf(buf, sizeof(buf), "%s now has status: %s",
							p->from->resource, msg);
					write_to_conv(jc->b, buf, WFLAG_SYSTEM, NULL, time(NULL));
				}
			} else if (jc->b && msg) {
				char buf[8192];

				if (topic) {
					char tbuf[8192];
					g_snprintf(tbuf, sizeof(tbuf), "%s", topic);
					chat_set_topic(jc->b, p->from->resource, tbuf);
				}
				

				g_snprintf(buf, sizeof(buf), "%s", msg);
				serv_got_chat_in(GJ_GC(j), jc->b->id, p->from->resource, 0, buf, time(NULL));
			}
		} else { /* message from the server */
		   	if(jc->b && topic) {
			   	char tbuf[8192];
				g_snprintf(tbuf, sizeof(tbuf), "%s", topic);
				chat_set_topic(jc->b, "", tbuf);
			}
		}

		g_free(msg);
		g_free(topic);

	} else {
		debug_printf("unhandled message %s\n", type);
	}
}

static void jabber_handlepresence(gjconn j, jpacket p)
{
	char *to, *from, *type;
	struct buddy *b = NULL;
	jid who;
	char *buddy;
	xmlnode y;
	char *show;
	int state = 0;
	GSList *resources;
	char *res;
	struct conversation *cnv = NULL;
	struct jabber_chat *jc = NULL;

	to = xmlnode_get_attrib(p->x, "to");
	from = xmlnode_get_attrib(p->x, "from");
	type = xmlnode_get_attrib(p->x, "type");

	if ((y = xmlnode_get_tag(p->x, "show"))) {
		show = xmlnode_get_data(y);
		if (!show) {
			state = 0;
		} else if (!strcasecmp(show, "away")) {
			state = UC_AWAY;
		} else if (!strcasecmp(show, "chat")) {
			state = UC_CHAT;
		} else if (!strcasecmp(show, "xa")) {
			state = UC_XA;
		} else if (!strcasecmp(show, "dnd")) {
			state = UC_DND;
		}
	} else {
		state = 0;
	}

	who = jid_new(j->p, from);
	if (who->user == NULL) {
		/* FIXME: transport */
		return;
	}

	buddy = g_strdup_printf("%s@%s", who->user, who->server);

	/* um. we're going to check if it's a chat. if it isn't, and there are pending
	 * chats, create the chat. if there aren't pending chats, add the buddy. */
	if ((cnv = find_chat(GJ_GC(j), who->user)) == NULL) {
		static int i = 0x70;
		struct jabber_data *jd = GJ_GC(j)->proto_data;
		if ((jc = find_pending_chat(GJ_GC(j), who)) != NULL) {
			jc->b = cnv = serv_got_joined_chat(GJ_GC(j), i++, who->user);
			jc->id = jc->b->id;
			jd->existing_chats = g_slist_append(jd->existing_chats, jc);
			jd->pending_chats = g_slist_remove(jd->pending_chats, jc);
		} else if (!(b = find_buddy(GJ_GC(j), buddy))) {
			b = add_buddy(GJ_GC(j), "Buddies", buddy, buddy);
			do_export(GJ_GC(j));
		}
	}

	if (!cnv) {
		resources = b->proto_data;
		res = who->resource;
		if (res)
			while (resources) {
				if (!strcmp(res, resources->data))
					break;
				resources = resources->next;
			}

		if (type && (strcasecmp(type, "unavailable") == 0)) {
			if (resources) {
				g_free(resources->data);
				b->proto_data = g_slist_remove(b->proto_data, resources->data);
			}
			if (!b->proto_data) {
				serv_got_update(GJ_GC(j), buddy, 0, 0, 0, 0, 0, 0);
			}
		} else {
			/* keep track of away msg same as yahoo plugin */
			struct jabber_data *jd = GJ_GC(j)->proto_data;
			gpointer val = g_hash_table_lookup(jd->hash, normalize(b->name));
			if (val) {
			   	g_free(val);
				g_hash_table_insert(jd->hash, normalize(b->name),
						g_strdup(xmlnode_get_tag_data(p->x, "status")));
			} else
				g_hash_table_insert(jd->hash, g_strdup(normalize(b->name)),
						g_strdup(xmlnode_get_tag_data(p->x, "status")));


			if (!resources) {
				b->proto_data = g_slist_append(b->proto_data, g_strdup(res));
			}

			serv_got_update(GJ_GC(j), buddy, 1, 0, 0, 0, state, 0);

		}
	} else {
		if (who->resource) {
			if (type && !strcasecmp(type, "unavailable")) {
				struct jabber_data *jd;
				if (!jc && !(jc = find_existing_chat(GJ_GC(j), who))) {
					g_free(buddy);
					return;
				}
				jd = jc->gc->proto_data;
				if (strcmp(who->resource, jc->Jid->resource) && jc->b) {
					remove_chat_buddy(jc->b, who->resource, NULL);
					return;
				}

				jd->existing_chats = g_slist_remove(jd->existing_chats, jc);
				serv_got_chat_left(GJ_GC(j), jc->id);
				g_free(jc);
			} else {
				if ((!jc && !(jc = find_existing_chat(GJ_GC(j), who))) || !jc->b) {
					g_free(buddy);
					return;
				}
				if (!find_chat_buddy(jc->b, who->resource))
					add_chat_buddy(jc->b, who->resource);
				else if ((y = xmlnode_get_tag(p->x, "status"))) {
					char buf[8192];
					char *msg = xmlnode_get_data(y);
					g_snprintf(buf, sizeof(buf), "%s now has status: %s",
							p->from->resource, msg);
					write_to_conv(jc->b, buf, WFLAG_SYSTEM, NULL, time(NULL));
				}
			}
		}
	}

	g_free(buddy);

	return;
}

static void jabber_handles10n(gjconn j, jpacket p)
{
	xmlnode g;
	char *Jid = xmlnode_get_attrib(p->x, "from");
	char *ask = xmlnode_get_attrib(p->x, "type");

	g = xmlnode_new_tag("presence");
	xmlnode_put_attrib(g, "to", Jid);
	if (!strcmp(ask, "subscribe"))
		xmlnode_put_attrib(g, "type", "subscribed");
	else if (!strcmp(ask, "unsubscribe"))
		xmlnode_put_attrib(g, "type", "unsubscribed");
	else
		return;

	gjab_send(j, g);
}

static void jabber_handleroster(gjconn j, xmlnode querynode)
{
	xmlnode x;

	x = xmlnode_get_firstchild(querynode);
	while (x) {
		xmlnode g;
		char *Jid, *name, *sub, *ask;
		jid who;

		Jid = xmlnode_get_attrib(x, "jid");
		name = xmlnode_get_attrib(x, "name");
		sub = xmlnode_get_attrib(x, "subscription");
		ask = xmlnode_get_attrib(x, "ask");
		who = jid_new(j->p, Jid);

		if ((g = xmlnode_get_firstchild(x))) {
			while (g) {
				if (xmlnode_get_name(g) &&
						g_strncasecmp(xmlnode_get_name(g), "group", 5) == 0) {
					struct buddy *b = NULL;
					char *groupname, *buddyname;

					if (!who || !who->user) {
						/* FIXME: transport */
						g = xmlnode_get_nextsibling(g);
						continue;
					}
					buddyname = g_strdup_printf("%s@%s", who->user, who->server);
					groupname = xmlnode_get_data(xmlnode_get_firstchild(g));
					if (groupname == NULL)
						groupname = "Buddies";
					if (strcasecmp(sub, "from") && strcasecmp(sub, "none") &&
							!(b = find_buddy(GJ_GC(j), buddyname))) {
						debug_printf("adding buddy: %s\n", buddyname);
						b = add_buddy(GJ_GC(j), groupname, buddyname,
							      name ? name : buddyname);
						do_export(GJ_GC(j));
					/*
					} else if (b) {
						debug_printf("updating buddy: %s/%s\n", buddyname, name);
						g_snprintf(b->name, sizeof(b->name), "%s", buddyname);
						g_snprintf(b->show, sizeof(b->show), "%s",
							   name ? name : buddyname);
					*/
					}
					g_free(buddyname);
				}
				g = xmlnode_get_nextsibling(g);
			}
		} else {
			struct buddy *b;
			char *buddyname;

			if (!who || !who->user) {
				/* FIXME: transport */
				x = xmlnode_get_nextsibling(x);
				continue;
			}
			buddyname = g_strdup_printf("%s@%s", who->user, who->server);
			if (strcasecmp(sub, "from") && strcasecmp(sub, "none") &&
					!(b = find_buddy(GJ_GC(j), buddyname))) {
				debug_printf("adding buddy: %s\n", buddyname);
				b = add_buddy(GJ_GC(j), "Buddies", buddyname, name ? name : Jid);
				do_export(GJ_GC(j));
			}
			g_free(buddyname);
		}

		x = xmlnode_get_nextsibling(x);
	}

	x = jutil_presnew(0, NULL, "Online");
	gjab_send(j, x);
	xmlnode_free(x);
}

static void jabber_handlevcard(gjconn j, xmlnode querynode, char *from)
{
	struct gaim_connection *gc = GJ_GC(j);
	char buf[1024];
	char *fn, *url, *email, *nickname, *status, *desc;
	jid who;
	char *buddy;
	struct jabber_data *jd = GJ_GC(j)->proto_data;
	int at = 0;

	who = jid_new(j->p, from);
	buddy = g_strdup_printf("%s@%s", who->user, who->server);
	
	fn = xmlnode_get_tag_data(querynode, "FN");
	url = xmlnode_get_tag_data(querynode, "URL");
	email = xmlnode_get_tag_data(querynode, "EMAIL");
	nickname = xmlnode_get_tag_data(querynode, "NICKNAME");
	desc = xmlnode_get_tag_data(querynode, "DESC");
	status = g_hash_table_lookup(jd->hash, buddy);
	if (!status)
		status = "Online";

	at = g_snprintf(buf, sizeof buf, "<B>Jabber ID:</B> %s<BR>", buddy);
	if (fn)
		at += g_snprintf(buf + at, sizeof(buf) - at, "<B>Full Name:</B> %s<BR>", fn);
	if (nickname)
		at += g_snprintf(buf + at, sizeof(buf) - at, "<B>Nickname:</B> %s<BR>", nickname);
	if (url)
		at += g_snprintf(buf + at, sizeof(buf) - at, "<B>URL:</B> <A HREF=\"%s\">%s</A><BR>",
				url, url);
	if (email)
		at += g_snprintf(buf + at, sizeof(buf) - at,
				"<B>Email:</B> <A HREF=\"mailto:%s\">%s</A><BR>", email, email);
	at += g_snprintf(buf + at, sizeof(buf) - at, "<B>Status:</B> %s\n", status);
	if (desc)
		at += g_snprintf(buf + at, sizeof(buf) - at, "<HR>%s<br>\n", desc);

	g_show_info_text(gc, buddy, 2, buf, NULL);
	g_free(buddy);
}

static void jabber_handleauthresp(gjconn j, jpacket p)
{
	if (jpacket_subtype(p) == JPACKET__RESULT) {
		if (xmlnode_has_children(p->x)) {
			xmlnode query = xmlnode_get_tag(p->x, "query");
			set_login_progress(GJ_GC(j), 4, "Authenticating");
			if (!xmlnode_get_tag(query, "digest")) {
				g_free(j->sid);
				j->sid = NULL;
			}
			gjab_auth(j);
		} else {
			debug_printf("auth success\n");

			account_online(GJ_GC(j));
			serv_finish_login(GJ_GC(j));

			if (bud_list_cache_exists(GJ_GC(j)))
				do_import(GJ_GC(j), NULL);

			((struct jabber_data *)GJ_GC(j)->proto_data)->did_import = TRUE;

			gjab_reqroster(j);
		}
	} else {
		xmlnode xerr;
		char *errmsg = NULL;
		int errcode = 0;
		struct jabber_data *jd = GJ_GC(j)->proto_data;

		debug_printf("auth failed\n");
		xerr = xmlnode_get_tag(p->x, "error");
		if (xerr) {
			char msg[BUF_LONG];
			errmsg = xmlnode_get_data(xerr);
			if (xmlnode_get_attrib(xerr, "code")) {
				errcode = atoi(xmlnode_get_attrib(xerr, "code"));
				g_snprintf(msg, sizeof(msg), "Error %d: %s", errcode, errmsg);
			} else
				g_snprintf(msg, sizeof(msg), "%s", errmsg);
			hide_login_progress(GJ_GC(j), msg);
		} else {
			hide_login_progress(GJ_GC(j), "Unknown login error");
		}

		jd->die = TRUE;
	}
}

static void jabber_handleversion(gjconn j, xmlnode iqnode) {
	xmlnode querynode, x;
	char *id, *from;
	char os[1024];
	struct utsname osinfo;

	uname(&osinfo);
	g_snprintf(os, sizeof os, "%s %s %s", osinfo.sysname, osinfo.release, osinfo.machine);

	id = xmlnode_get_attrib(iqnode, "id");
	from = xmlnode_get_attrib(iqnode, "from");

	x = jutil_iqnew(JPACKET__RESULT, NS_VERSION);

	xmlnode_put_attrib(x, "to", from);
	xmlnode_put_attrib(x, "id", id);
	querynode = xmlnode_get_tag(x, "query");
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "name"), PACKAGE, -1);
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "version"), VERSION, -1);
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "os"), os, -1);

	gjab_send(j, x);

	xmlnode_free(x);
}

static void jabber_handletime(gjconn j, xmlnode iqnode) {
	xmlnode querynode, x;
	char *id, *from;
	time_t now_t; 
	struct tm *now;
	char buf[1024];

	time(&now_t);
	now = localtime(&now_t);

	id = xmlnode_get_attrib(iqnode, "id");
	from = xmlnode_get_attrib(iqnode, "from");

	x = jutil_iqnew(JPACKET__RESULT, NS_TIME);

	xmlnode_put_attrib(x, "to", from);
	xmlnode_put_attrib(x, "id", id);
	querynode = xmlnode_get_tag(x, "query");

	strftime(buf, 1024, "%Y%m%dT%T", now);
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "utc"), buf, -1);
	strftime(buf, 1024, "%Z", now);
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "tz"), buf, -1);
	strftime(buf, 1024, "%d %b %Y %T", now);
	xmlnode_insert_cdata(xmlnode_insert_tag(querynode, "display"), buf, -1);
	
	gjab_send(j, x);

	xmlnode_free(x);
}

static void jabber_handlelast(gjconn j, xmlnode iqnode) {
   	xmlnode x, querytag;
	char *id, *from;
	struct jabber_data *jd = GJ_GC(j)->proto_data;
	char idle_time[32];
	
	id = xmlnode_get_attrib(iqnode, "id");
	from = xmlnode_get_attrib(iqnode, "from");

	x = jutil_iqnew(JPACKET__RESULT, "jabber:iq:last");

	xmlnode_put_attrib(x, "to", from);
	xmlnode_put_attrib(x, "id", id);
	querytag = xmlnode_get_tag(x, "query");
	g_snprintf(idle_time, sizeof idle_time, "%ld", jd->idle ? time(NULL) - jd->idle : 0);
	xmlnode_put_attrib(querytag, "seconds", idle_time);

	gjab_send(j, x);
	xmlnode_free(x);
}

static void jabber_handlepacket(gjconn j, jpacket p)
{
	char *id;
	switch (p->type) {
	case JPACKET_MESSAGE:
		jabber_handlemessage(j, p);
		break;
	case JPACKET_PRESENCE:
		jabber_handlepresence(j, p);
		break;
	case JPACKET_IQ:
		debug_printf("jpacket_subtype: %d\n", jpacket_subtype(p));

		if (((id = xmlnode_get_attrib(p->x, "id")) != NULL) && !strcmp(id, IQID_AUTH)) {
			jabber_handleauthresp(j, p);
			break;
		}

		if (jpacket_subtype(p) == JPACKET__SET) {
		} else if (jpacket_subtype(p) == JPACKET__GET) {
		   	xmlnode querynode;
			querynode = xmlnode_get_tag(p->x, "query");
		   	if (NSCHECK(querynode, NS_VERSION)) {
			   	jabber_handleversion(j, p->x);
			} else if (NSCHECK(querynode, NS_TIME)) {
			   	jabber_handletime(j, p->x);
			} else if (NSCHECK(querynode, "jabber:iq:last")) {
			   	jabber_handlelast(j, p->x);
			}
		} else if (jpacket_subtype(p) == JPACKET__RESULT) {
			xmlnode querynode, vcard;
			char *xmlns, *from;

			from = xmlnode_get_attrib(p->x, "from");
			querynode = xmlnode_get_tag(p->x, "query");
			xmlns = xmlnode_get_attrib(querynode, "xmlns");
			vcard = xmlnode_get_tag(p->x, "vCard");
			if (!vcard)
				vcard = xmlnode_get_tag(p->x, "VCARD");

			if (NSCHECK(querynode, NS_ROSTER)) {
				jabber_handleroster(j, querynode);
			} else if (NSCHECK(querynode, NS_VCARD)) {
			   	jabber_handlevcard(j, querynode, from);
			} else if (vcard) {
				jabber_handlevcard(j, vcard, from);
			} else {
				/* debug_printf("jabber:iq:query: %s\n", xmlns); */
			}

		} else if (jpacket_subtype(p) == JPACKET__ERROR) {
			xmlnode xerr;
			char *from, *errmsg = NULL;
			int errcode = 0;

			from = xmlnode_get_attrib(p->x, "from");
			xerr = xmlnode_get_tag(p->x, "error");
			if (xerr) {
				errmsg = xmlnode_get_data(xerr);
				if (xmlnode_get_attrib(xerr, "code"))
					errcode = atoi(xmlnode_get_attrib(xerr, "code"));
			}

			from = g_strdup_printf("Error %d (%s)", errcode, from);
			do_error_dialog(errmsg, from);
			g_free(from);

		}

		break;

	case JPACKET_S10N:
		jabber_handles10n(j, p);
		break;
	default:
		debug_printf("jabber: packet type %d (%s)\n", p->type, xmlnode2str(p->x));
	}

	xmlnode_free(p->x);

	return;
}

static void jabber_handlestate(gjconn j, int state)
{
	switch (state) {
	case JCONN_STATE_OFF:
		hide_login_progress(GJ_GC(j), "Unable to connect");
		signoff(GJ_GC(j));
		break;
	case JCONN_STATE_CONNECTED:
		set_login_progress(GJ_GC(j), 2, "Connected");
		break;
	case JCONN_STATE_ON:
		set_login_progress(GJ_GC(j), 3, "Requesting Authentication Method");
		gjab_reqauth(j);
		break;
	default:
		debug_printf("state change: %d\n", state);
	}
	return;
}

static void jabber_login(struct aim_user *user)
{
	struct gaim_connection *gc = new_gaim_conn(user);
	struct jabber_data *jd = gc->proto_data = g_new0(struct jabber_data, 1);
	char *loginname = create_valid_jid(user->username, DEFAULT_SERVER, "GAIM");

	jd->hash = g_hash_table_new(g_str_hash, g_str_equal);

	set_login_progress(gc, 1, "Connecting");

	if (!(jd->jc = gjab_new(loginname, user->password, gc))) {
		g_free(loginname);
		debug_printf("jabber: unable to connect (jab_new failed)\n");
		hide_login_progress(gc, "Unable to connect");
		signoff(gc);
		return;
	}

	g_free(loginname);
	gjab_state_handler(jd->jc, jabber_handlestate);
	gjab_packet_handler(jd->jc, jabber_handlepacket);
	gjab_start(jd->jc);
}

static gboolean jabber_destroy_hash(gpointer key, gpointer val, gpointer data) {
   	g_free(key);
	g_free(val);
	return TRUE;
}

static gboolean jabber_free(gpointer data)
{
	gjab_delete(data);
	return FALSE;
}

static void jabber_close(struct gaim_connection *gc)
{
	struct jabber_data *jd = gc->proto_data;
	g_hash_table_foreach_remove(jd->hash, jabber_destroy_hash, NULL);
	g_hash_table_destroy(jd->hash);
	if (gc->inpa)
		gaim_input_remove(gc->inpa);
	close(jd->jc->fd);
	g_timeout_add(50, jabber_free, jd->jc);
	xmlnode_free(jd->jc->current);
	g_free(jd->jc->sid);
	jd->jc = NULL;
	g_free(jd);
	gc->proto_data = NULL;
}

static int jabber_send_im(struct gaim_connection *gc, char *who, char *message, int flags)
{
	xmlnode x, y;
	char *realwho;
	gjconn j = ((struct jabber_data *)gc->proto_data)->jc;

	if (!who || !message)
		return 0;

	x = xmlnode_new_tag("message");
	if (!strchr(who, '@'))
		realwho = g_strdup_printf("%s@%s", who, j->user->server);
	else
		realwho = g_strdup(who);
	xmlnode_put_attrib(x, "to", realwho);
	g_free(realwho);

	xmlnode_insert_tag(x, "gaim");
	xmlnode_put_attrib(x, "type", "chat");

	if (message && strlen(message)) {
		char *utf8 = str_to_utf8(message);
		y = xmlnode_insert_tag(x, "body");
		xmlnode_insert_cdata(y, utf8, -1);
		g_free(utf8);
	}

	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);
	xmlnode_free(x);
	return 1;
}

static void jabber_add_buddy(struct gaim_connection *gc, char *name)
{
	xmlnode x, y;
	char *realwho;
	gjconn j = ((struct jabber_data *)gc->proto_data)->jc;

	if (!((struct jabber_data *)gc->proto_data)->did_import)
		return;

	if (!name)
		return;

	if (!strcmp(gc->username, name))
		return;

	if (!strchr(name, '@'))
		realwho = g_strdup_printf("%s@%s", name, j->user->server);
	else {
		jid who = jid_new(j->p, name);
		if (who->user == NULL) {
			/* FIXME: transport */
			return;
		}
		realwho = g_strdup_printf("%s@%s", who->user, who->server);
	}

	x = jutil_iqnew(JPACKET__SET, NS_ROSTER);
	y = xmlnode_insert_tag(xmlnode_get_tag(x, "query"), "item");
	xmlnode_put_attrib(y, "jid", realwho);
	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);
	xmlnode_free(x);

	x = xmlnode_new_tag("presence");
	xmlnode_put_attrib(x, "to", realwho);
	xmlnode_put_attrib(x, "type", "subscribe");
	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);

	g_free(realwho);
}

static void jabber_remove_buddy(struct gaim_connection *gc, char *name, char *group)
{
	xmlnode x, y;
	char *realwho;
	gjconn j = ((struct jabber_data *)gc->proto_data)->jc;

	if (!name)
		return;

	if (!strchr(name, '@'))
		realwho = g_strdup_printf("%s@%s", name, j->user->server);
	else
		realwho = g_strdup(name);

	x = jutil_iqnew(JPACKET__SET, NS_ROSTER);
	y = xmlnode_insert_tag(xmlnode_get_tag(x, "query"), "item");
	xmlnode_put_attrib(y, "jid", realwho);
	xmlnode_put_attrib(y, "subscription", "remove");
	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);

	g_free(realwho);
	xmlnode_free(x);
}

static char **jabber_list_icon(int uc)
{
	switch (uc) {
	case UC_AWAY:
		return available_away_xpm;
	case UC_CHAT:
		return available_chat_xpm;
	case UC_XA:
		return available_xa_xpm;
	case UC_DND:
		return available_dnd_xpm;
	default:
		return available_xpm;
	}
}

static GList *jabber_chat_info(struct gaim_connection *gc)
{
	gjconn j = ((struct jabber_data *)gc->proto_data)->jc;

	GList *m = NULL;
	struct proto_chat_entry *pce;

	pce = g_new0(struct proto_chat_entry, 1);
	pce->label = _("Room:");
	m = g_list_append(m, pce);

	pce = g_new0(struct proto_chat_entry, 1);
	pce->label = _("Server:");
	pce->def = DEFAULT_GROUPCHAT;
	m = g_list_append(m, pce);

	pce = g_new0(struct proto_chat_entry, 1);
	pce->label = _("Handle:");
	pce->def = j->user->user;
	m = g_list_append(m, pce);

	return m;
}

static void jabber_join_chat(struct gaim_connection *gc, GList *data)
{
	xmlnode x;
	char *realwho;
	gjconn j = ((struct jabber_data *)gc->proto_data)->jc;
	GSList *pc = ((struct jabber_data *)gc->proto_data)->pending_chats;
	struct jabber_chat *jc;

	if (!data || !data->next || !data->next->next)
		return;

	jc = g_new0(struct jabber_chat, 1);
	realwho = create_valid_jid(data->data, data->next->data,
			data->next->next->data);
	jc->Jid = jid_new(j->p, realwho);
	jc->gc = gc;
	debug_printf("%s\n", realwho);

	x = jutil_presnew(0, realwho, NULL);
	gjab_send(j, x);
	xmlnode_free(x);
	g_free(realwho);

	((struct jabber_data *)gc->proto_data)->pending_chats = g_slist_append(pc, jc);
}

static void jabber_chat_invite(struct gaim_connection *gc, int id, char *message, char *name)
{
	xmlnode x, y;
	GSList *bcs = gc->buddy_chats;
	struct conversation *b = NULL;
	struct jabber_data *jd = gc->proto_data;
	gjconn j = jd->jc;
	struct jabber_chat *jc = NULL;
	char *realwho, *subject;

	if (!name)
		return;

	/* find which chat we're inviting to */
	while (bcs) {
		b = bcs->data;
		if (id == b->id)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	bcs = jd->existing_chats;
	while (bcs) {
		jc = bcs->data;
		if (jc->b == b)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	x = xmlnode_new_tag("message");
	if (!strchr(name, '@'))
		realwho = g_strdup_printf("%s@%s", name, j->user->server);
	else
		realwho = g_strdup(name);
	xmlnode_put_attrib(x, "to", realwho);
	g_free(realwho);

	y = xmlnode_insert_tag(x, "x");
	xmlnode_put_attrib(y, "xmlns", "jabber:x:conference");
	subject = g_strdup_printf("%s@%s", jc->Jid->user, jc->Jid->server);
	xmlnode_put_attrib(y, "jid", subject);
	g_free(subject);

	if (message && strlen(message)) {
		char *utf8 = str_to_utf8(message);
		y = xmlnode_insert_tag(x, "body");
		xmlnode_insert_cdata(y, utf8, -1);
		g_free(utf8);
	}

	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);
	xmlnode_free(x);
}

static void jabber_chat_leave(struct gaim_connection *gc, int id)
{
	GSList *bcs = gc->buddy_chats;
	struct conversation *b = NULL;
	struct jabber_data *jd = gc->proto_data;
	gjconn j = jd->jc;
	struct jabber_chat *jc = NULL;
	char *realwho;
	xmlnode x;

	while (bcs) {
		b = bcs->data;
		if (id == b->id)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	bcs = jd->existing_chats;
	while (bcs) {
		jc = bcs->data;
		if (jc->b == b)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	realwho = g_strdup_printf("%s@%s", jc->Jid->user, jc->Jid->server);
	x = jutil_presnew(0, realwho, NULL);
	g_free(realwho);
	xmlnode_put_attrib(x, "type", "unavailable");
	gjab_send(j, x);
	xmlnode_free(x);
	jc->b = NULL;
}

static int jabber_chat_send(struct gaim_connection *gc, int id, char *message)
{
	GSList *bcs = gc->buddy_chats;
	struct conversation *b = NULL;
	struct jabber_data *jd = gc->proto_data;
	xmlnode x, y;
	struct jabber_chat *jc = NULL;
	char *chatname;

	while (bcs) {
		b = bcs->data;
		if (id == b->id)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return -EINVAL;

	bcs = jd->existing_chats;
	while (bcs) {
		jc = bcs->data;
		if (jc->b == b)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return -EINVAL;

	x = xmlnode_new_tag("message");
	xmlnode_put_attrib(x, "from", jid_full(jc->Jid));
	chatname = g_strdup_printf("%s@%s", jc->Jid->user, jc->Jid->server);
	xmlnode_put_attrib(x, "to", chatname);
	g_free(chatname);
	xmlnode_put_attrib(x, "type", "groupchat");

	if (message && strlen(message) > strlen("/topic ") &&
			!g_strncasecmp(message, "/topic ", strlen("/topic "))) {
		char buf[8192];
		char *utf8 = str_to_utf8(message + strlen("/topic "));
		y = xmlnode_insert_tag(x, "subject");
		xmlnode_insert_cdata(y, utf8, -1);
		y = xmlnode_insert_tag(x, "body");
		g_snprintf(buf, sizeof(buf), "/me has changed the subject to: %s", utf8);
		xmlnode_insert_cdata(y, buf, -1);
		g_free(utf8);
	} else if (message && strlen(message)) {
		char *utf8 = str_to_utf8(message);
		y = xmlnode_insert_tag(x, "body");
		xmlnode_insert_cdata(y, utf8, -1);
		g_free(utf8);
	}

	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);
	xmlnode_free(x);
	return 0;
}

static void jabber_chat_whisper(struct gaim_connection *gc, int id, char *who, char *message)
{
	GSList *bcs = gc->buddy_chats;
	struct conversation *b = NULL;
	struct jabber_data *jd = gc->proto_data;
	xmlnode x, y;
	struct jabber_chat *jc = NULL;
	char *chatname;

	while (bcs) {
		b = bcs->data;
		if (id == b->id)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	bcs = jd->existing_chats;
	while (bcs) {
		jc = bcs->data;
		if (jc->b == b)
			break;
		bcs = bcs->next;
	}
	if (!bcs)
		return;

	x = xmlnode_new_tag("message");
	xmlnode_put_attrib(x, "from", jid_full(jc->Jid));
	chatname = g_strdup_printf("%s@%s/%s", jc->Jid->user, jc->Jid->server, who);
	xmlnode_put_attrib(x, "to", chatname);
	g_free(chatname);
	xmlnode_put_attrib(x, "type", "normal");

	if (message && strlen(message)) {
		char *utf8 = str_to_utf8(message);
		y = xmlnode_insert_tag(x, "body");
		xmlnode_insert_cdata(y, utf8, -1);
		g_free(utf8);
	}

	gjab_send(((struct jabber_data *)gc->proto_data)->jc, x);
	xmlnode_free(x);
}

static char *jabber_normalize(const char *s)
{
	static char buf[BUF_LEN];
	char *t, *u;
	int x = 0;

	g_return_val_if_fail((s != NULL), NULL);

	u = t = g_strdup(s);

	g_strdown(t);

	while (*t && (x < BUF_LEN - 1)) {
		if (*t != ' ')
			buf[x++] = *t;
		t++;
	}
	buf[x] = '\0';
	g_free(u);

	if (!strchr(buf, '@')) {
		strcat(buf, "@jabber.org"); /* this isn't always right, but eh */
	} else if ((u = strchr(strchr(buf, '@'), '/')) != NULL) {
		*u = '\0';
	}

	return buf;
}

static void jabber_get_info(struct gaim_connection *gc, char *who) {
	xmlnode x;
	char *id;
	struct jabber_data *jd = gc->proto_data;
	gjconn j = jd->jc;

	x = jutil_iqnew(JPACKET__GET, NS_VCARD);
	xmlnode_put_attrib(x, "to", who);
	id = gjab_getid(j);
	xmlnode_put_attrib(x, "id", id);

	gjab_send(j, x);

	xmlnode_free(x);
	
}

static GList *jabber_buddy_menu(struct gaim_connection *gc, char *who) {
	GList *m = NULL;
	struct proto_buddy_menu *pbm;

	pbm = g_new0(struct proto_buddy_menu, 1);
	pbm->label = _("Get Info");
	pbm->callback = jabber_get_info;
	pbm->gc = gc;
	m = g_list_append(m, pbm);

	return m;
}

static GList *jabber_away_states(struct gaim_connection *gc) {
	GList *m = NULL;

	m = g_list_append(m, "Online");
	m = g_list_append(m, "Chatty");
	m = g_list_append(m, "Away");
	m = g_list_append(m, "Extended Away");
	m = g_list_append(m, "Do Not Disturb");

	return m;
}

static void jabber_set_away(struct gaim_connection *gc, char *state, char *message)
{
	xmlnode x, y;
	struct jabber_data *jd = gc->proto_data;
	gjconn j = jd->jc;

	gc->away = NULL; /* never send an auto-response */

	x = xmlnode_new_tag("presence");

	if (!strcmp(state, GAIM_AWAY_CUSTOM)) {
		/* oh goody. Gaim is telling us what to do. */
		if (message) {
			/* Gaim wants us to be away */
			y = xmlnode_insert_tag(x, "show");
			xmlnode_insert_cdata(y, "away", -1);
			y = xmlnode_insert_tag(x, "status");
			xmlnode_insert_cdata(y, message, -1);
			gc->away = "";
		} else {
			/* Gaim wants us to not be away */
			/* but for Jabber, we can just send presence with no other information. */
		}
	} else {
		/* state is one of our own strings. it won't be NULL. */
		if (!strcmp(state, "Online")) {
			/* once again, we don't have to put anything here */
		} else if (!strcmp(state, "Chatty")) {
			y = xmlnode_insert_tag(x, "show");
			xmlnode_insert_cdata(y, "chat", -1);
		} else if (!strcmp(state, "Away")) {
			y = xmlnode_insert_tag(x, "show");
			xmlnode_insert_cdata(y, "away", -1);
			gc->away = "";
		} else if (!strcmp(state, "Extended Away")) {
			y = xmlnode_insert_tag(x, "show");
			xmlnode_insert_cdata(y, "xa", -1);
			gc->away = "";
		} else if (!strcmp(state, "Do Not Disturb")) {
			y = xmlnode_insert_tag(x, "show");
			xmlnode_insert_cdata(y, "dnd", -1);
			gc->away = "";
		}
	}

	gjab_send(j, x);
	xmlnode_free(x);
}

static void jabber_set_idle(struct gaim_connection *gc, int idle) {
	struct jabber_data *jd = (struct jabber_data *)gc->proto_data;
	debug_printf("jabber_set_idle: setting idle %i\n", idle);
   	jd->idle = idle ? time(NULL) - idle : idle;
}

static void jabber_keepalive(struct gaim_connection *gc) {
	struct jabber_data *jd = (struct jabber_data *)gc->proto_data;
	gjab_send_raw(jd->jc, "  \t  ");
}

static GList *jabber_user_opts()
{
	GList *m = NULL;
	struct proto_user_opt *puo;

	puo = g_new0(struct proto_user_opt, 1);
	puo->label = "Port:";
	puo->def = "5222";
	puo->pos = USEROPT_PORT;
	m = g_list_append(m, puo);

	return m;
}

static void jabber_buddy_free(struct buddy *b)
{
	while (b->proto_data) {
		g_free(((GSList *)b->proto_data)->data);
		b->proto_data = g_slist_remove(b->proto_data, ((GSList *)b->proto_data)->data);
	}
}

static struct prpl *my_protocol = NULL;

void jabber_init(struct prpl *ret)
{
	/* the NULL's aren't required but they're nice to have */
	ret->protocol = PROTO_JABBER;
	ret->options = OPT_PROTO_UNIQUE_CHATNAME | OPT_PROTO_CHAT_TOPIC;
	ret->name = jabber_name;
	ret->list_icon = jabber_list_icon;
	ret->away_states = jabber_away_states;
	ret->buddy_menu = jabber_buddy_menu;
	ret->user_opts = jabber_user_opts;
	ret->login = jabber_login;
	ret->close = jabber_close;
	ret->send_im = jabber_send_im;
	ret->set_info = NULL;
	ret->get_info = jabber_get_info;
	ret->set_away = jabber_set_away;
	ret->set_dir = NULL;
	ret->get_dir = NULL;
	ret->dir_search = NULL;
	ret->set_idle = jabber_set_idle;
	ret->change_passwd = NULL;
	ret->add_buddy = jabber_add_buddy;
	ret->add_buddies = NULL;
	ret->remove_buddy = jabber_remove_buddy;
	ret->add_permit = NULL;
	ret->add_deny = NULL;
	ret->rem_permit = NULL;
	ret->rem_deny = NULL;
	ret->set_permit_deny = NULL;
	ret->warn = NULL;
	ret->chat_info = jabber_chat_info;
	ret->join_chat = jabber_join_chat;
	ret->chat_invite = jabber_chat_invite;
	ret->chat_leave = jabber_chat_leave;
	ret->chat_whisper = jabber_chat_whisper;
	ret->chat_send = jabber_chat_send;
	ret->keepalive = jabber_keepalive;
	ret->normalize = jabber_normalize;
	ret->buddy_free = jabber_buddy_free;

	my_protocol = ret;
}

#ifndef STATIC

char *gaim_plugin_init(GModule *handle)
{
	load_protocol(jabber_init, sizeof(struct prpl));
	return NULL;
}

void gaim_plugin_remove()
{
	struct prpl *p = find_prpl(PROTO_JABBER);
	if (p == my_protocol)
		unload_protocol(p);
}

char *name()
{
	return "Jabber";
}

char *description()
{
	return PRPL_DESC("Jabber");
}

#endif